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DS1239S-5N

Description
Supervisory Circuits
Categorysemiconductor    Power management   
File Size55KB,4 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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DS1239S-5N Overview

Supervisory Circuits

DS1239S-5N Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerMaxim
Product CategorySupervisory Circuits
TypeVoltage Supervisory
Mounting StyleSMD/SMT
Package / CaseSOIC-Wide-16
Threshold Voltage4.5 V to 5.5 V
Number of Inputs Monitored1 Input
Output TypeActive High, Active Low
Manual ResetManual Reset
Watchdog TimersNo Watchdog
Battery Backup SwitchingNo Backup
Supply Voltage - Max5.5 V
Maximum Operating Temperature+ 85 C
Minimum Operating Temperature- 40 C
Height2.35 mm (Max)
Length10.5 mm (Max)
Width7.6 mm (Max)
Chip Enable SignalsChip Enable
Operating Supply Voltage5 V
Power Fail DetectionYes
Supply Voltage - Min4.5 V
Unit Weight0.016709 oz
DS1239
MicroManager Chip
www.dalsemi.com
FEATURES
Provides necessary control for start up and
shutdown of power supply from keyboard
Holds microprocessor in check during power
transients
Halts and restarts an out-of-control
microprocessor
Monitors push button for external override
Warns microprocessor of an impending power
failure
Converts CMOS SRAM into nonvolatile
memory
Unconditionally write-protects memory when
power supply is out of tolerance
Consumes less than 100 nA of battery current
Controls external power switch for high
current applications
Accurate 10% power supply monitoring
Optional 5% power supply monitoring
designated DS1239-5
Provides orderly shutdown in nonvolatile
microprocessor applications
Supplies necessary control for low-power
“stop mode” in battery operate hand-held
applications
Standard 16-pin DIP or space-saving 16-pin
SOIC
Optional industrial temperature range -40°C
to +85°C
PIN ASSIGNMENT
VBAT
VCCO
VCC
GND
PF
PF
WC/SC
PSI
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PSO
RST
PBRST
CEI
VBAT
VCCO
CEO
VCC
GND
ST
PF
NMI
PF
WC/SC
IN
PSI
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PSO
RST
PBRST
CEI
CEO
ST
NMI
IN
DS1239 16-Pin DIP (300-mil)
See Mech. Drawings Section
DS1239 16-Pin SOIC (300-mil)
See Mech. Drawings Section
PIN DESCRIPTION
V
BAT
V
CCO
V
CC
GND
PF
PF
WC/
SC
PSI
IN
NMI
ST
CEO
CEI
PBRST
RST
PSO
- +3 Volt Battery Input
- Switched SRAM Supply Output
- +5 Volt Power Supply Input
- Ground
- Power Fail (Active High)
- Power Fail (Active Low)
- Wake-Up Control (Sleep)
- Power Supply Control Input
- Early Warning Input
- Non-Maskable Interrupt
- Strobe Input
- Chip Enable Output
- Chip Enable Input
- Pushbutton Reset Input
- Reset Output (Active low)
- Power Supply Control Outputs
DESCRIPTION
The DS1239 MicroManager provides all the necessary functions for power supply control and
monitoring, reset control, and memory backup in microprocessor-based systems. Using the DS1239, an
AC power switch is no longer required for microprocessor-based systems. A keyboard control system for
power supply start up and shutdown is provided through the use of the Power Supply Control Input and
Output. In other respects, the DS1239 is functionally identical to a DS1236 in the NMOS mode. For a
complete description of the other DS1239 features, refer to the DS1236 data sheet. Pin-out of the
1 of 4
111899

DS1239S-5N Related Products

DS1239S-5N DS1239-5+ DS1239-10 DS1239S-10 DS1239-10+
Description Supervisory Circuits Supervisory Circuits Supervisory Circuits Supervisory Circuits Supervisory Circuits
Is it Rohs certified? - conform to incompatible incompatible conform to
Maker - Maxim Maxim Maxim Maxim
Parts packaging code - DIP DIP - DIP
package instruction - DIP, 0.300 INCH, PLASTIC, DIP-16 0.300 INCH, SOIC-16 DIP,
Contacts - 16 16 - 16
Reach Compliance Code - compliant not_compliant not_compliant compliant
ECCN code - EAR99 EAR99 EAR99 EAR99
Other features - PUSHBUTTON RESET OPTION PUSHBUTTON RESET OPTION PUSHBUTTON RESET OPTION PUSHBUTTON RESET OPTION
Adjustable threshold - NO NO NO NO
Analog Integrated Circuits - Other Types - POWER SUPPLY MANAGEMENT CIRCUIT POWER SUPPLY MANAGEMENT CIRCUIT POWER SUPPLY MANAGEMENT CIRCUIT POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 code - R-PDIP-T16 R-PDIP-T16 R-PDSO-G16 R-PDIP-T16
JESD-609 code - e3 e0 e0 e3
length - 19.175 mm 19.175 mm 10.3 mm 19.175 mm
Number of channels - 1 1 1 1
Number of functions - 1 1 1 1
Number of terminals - 16 16 16 16
Maximum operating temperature - 70 °C 70 °C 70 °C 70 °C
Package body material - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - DIP DIP SOP DIP
Package shape - RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form - IN-LINE IN-LINE SMALL OUTLINE IN-LINE
Peak Reflow Temperature (Celsius) - 260 240 245 260
Certification status - Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height - 4.572 mm 4.572 mm 2.65 mm 4.572 mm
Maximum supply voltage (Vsup) - 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage (Vsup) - 4.5 V 4.5 V 4.5 V 4.5 V
Nominal supply voltage (Vsup) - 5 V 5 V 5 V 5 V
surface mount - NO NO YES NO
Temperature level - COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
Terminal surface - MATTE TIN Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) MATTE TIN
Terminal form - THROUGH-HOLE THROUGH-HOLE GULL WING THROUGH-HOLE
Terminal pitch - 2.54 mm 2.54 mm 1.27 mm 2.54 mm
Terminal location - DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature - NOT SPECIFIED 20 NOT SPECIFIED NOT SPECIFIED
width - 7.62 mm 7.62 mm 7.5 mm 7.62 mm
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